在星云中检测出一种高贵气体分子离子,36ArH+,在星云中
M J Barlow1, B M Swinyard, P J Owen
1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK.
Science (New York, N.Y.)
|December 17, 2013
概括
天文学家首次在太空中使用赫歇尔太空天文台检测到贵重气体分子,特别是化 (ArH+),在太空中. 在星云中的这一发现证实了关于-36来自超新星的起源的理论.
科学领域:
- 天体化学是天体化学.
- 无线电天文学 无线电天文学
- 频谱学是一种光谱学.
背景情况:
- 贵重气体分子以前没有在星际空间中被检测到.
- 星云是一种超新星残留物,含有分子和电离.
研究的目的:
- 在太空中检测贵重气体分子.
- 为了研究星云的组成.
主要方法:
- 利用赫歇尔太空天文台获得光谱.
- 分析了化 (ArH+) 排放线的光谱数据.
主要成果:
- 在星云中检测到617.5和1234.6 GHz的 (36) ArH+ 发射线.
- 证实了来自大质量恒星爆炸性核合成的-36的存在.
- 部分电离区域的电子碰撞被确定为可能的激发机制.
结论:
- 这标志着首次在太空中检测到一种高贵气体分子.
- 这些发现支持了-36起源于超新星事件的理论.
- 电子碰撞被证实是 (36) ArH+ 排放的激发源.
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